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[Bug string/20661] New: Use gcc stpncpy builtin chk function


https://sourceware.org/bugzilla/show_bug.cgi?id=20661

            Bug ID: 20661
           Summary: Use gcc stpncpy builtin chk function
           Product: glibc
           Version: 2.24
            Status: NEW
          Severity: normal
          Priority: P2
         Component: string
          Assignee: unassigned at sourceware dot org
          Reporter: adhemerval.zanella at linaro dot org
  Target Milestone: ---

Current string3.h comments states GCC does not provide stpncpy_chk builtin.
However since r182378 GCC does provide stpncpy_chk builtin support and it is
included in official GCC 4.7.4 package (so it should be fine to use on GLIBC
without GCC version guards).

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